Test device



P R. K. SMITH ETAL 2,328,750

TEST DEVICE Filed April 29, 1942 66 Sheets-Sheet 1 KEY RELAY F/G'I DEVICE CHAIN CIRCUIT UNDER ,Q mfl TEsT o T 1 u SIGNAL SIGNAL RELAY I WATCHING T RELAY To INDEX/N6 EU MEANS SATISFACTION RELAY FIG. 2 aFlfnjjB UNIT UNDER TEs CONNECT/N6 MEANS 2\ 11-; I '-'U vw l7 :I-HLA [1/ MEI lls 541 E I CONTROL TEsT c/-/ A//v C/RQU/ T I l2 l5 TEST FEATURE SELECT/N6 l- MEANS L =3 2 i Z i POWE TERM/NATION SELECTING MEANS J R; A. SMITH lNVENTOyRS J. H. SULZER ATTORNEY Sept. 7, 1943. R. K. SMITH ET AL 2,328,750

TEST DEVICE Filed April 29, 1942 5e Sheefs-Sheet 2 22 RELAYS SE GOND 23 LETTER FA/V RELAYS TAPE TRANSMITTER j F763 F764 FIG 5 I I CODE 0 I CO WB A CODE T mauAc kuvc/Nc CURRENT I llll NORMAL ADVANC/NG cmva FROM ro STOP mam-r or up: mam.

{fi mwarmzour CIRCUIT I can: 5/ r E\unsmcT/mv RELAV v 44 RKSM/TH INVENTORSJHSULZER ATTOE/l/EV R. K. SMITH .ET AL TEST DEVICE Sept. 7, 1943.

Filed April 29 1942 66 Sheets-Sheet 5 [ES T CHAIN CONTROL 6C7:

v ATTORNEY P 1943- R. K. SMITH ETAL 2,328,750

TEST DEVICE Filed April 29 1942 66 Sheets-Sheet 4 9 Fla. 7 gamtf nfiY rnnauan mspur 44pm:

SLOW IN TERRUPTED GROUND 48 MATCHING n51.

CHAIN T P IVT N To POWER TERMINATION APPARATUS UNDER TE 5 T fi mi- 4 KEY RELAY POR'STUVWXYZ I R A V I F 5 Y c c r 0 r 4- a w r A J R c *v V GROUP I GROUP 2 GROUP 3 GRR4 R. K SMITH WVENTSRS H SULZER Sept. 7, 1943. R. K. SMITH ET AL TEST DEVICE Filed April 29 1942 66 Sheets-Sheet 5 V: m M w A mm m V A W M M W R w A R in w. A m K m M K P S 5 l 00 Q 00 T8 4 www W4 flwh wh mm A. mm M m b m N n m G 6 G v FVL w .P W m ABC BC ABC ABC W MEI ll I i u u m r 1 1 Q j 3 5 nt :5: a u p fiifi .6 I Wm? A] M R s 45 Q 6 ABC ABC 6 ABC ABC w 3 a. 0 0 w 5 6 3 F L. 5 9 H il 6 m 1& 1i S l W M l 0 U .H M :QM o| H 0 TEA/S p 1 3 R. K. SMITH ETAL 2,328,750

TEST DEVICE Filed April 29, 1942 66 Sheets-Sheet 6 FIG.

kill-i 94 TERM/NAT/NG W l f T f R. A. SMITH INVENTORS S E )4 7' TORNE V Sept. 7, 1943, R. K. SMITH ET AL TEST DEVICE Filed April 29, 1942 66 Sheets-Sheet 7 R KSM/ TH WVENTORS .1 H SULZER AT TORNEY Sept. 7, 1943. R. K. SMITH ET'AL.

TEST DEVICE FiledApril 29, 1942 676 Sheets-Sheet 8 IN VE/V TORS RKSM/ TH JHSULZER A T TORNEY Sept. 7, 1943. R. K. SMITH ETAL TEST DEVICE 66 Sheets-Sheet 9 Filed April 29, 1942 EI H" ILL ATTORNEY RKSM/ TH /NVENTOR$JH5ULZER w m Rs 4 4 L u i l .oNT

, Q at Sept. 7, 1943. R. K. SMITH ET AL TEST DEVICE Filed April 29 1942 11k. I: ll [1 II I I: [I L Q 66 Sheets-Sheet ll QUE RKSM/TH yZ JHSULZER ATTORNEY Sept. 7, 1943. v R. K. SMITH ETAL TEST DEVICE Filed April 29, 1942 66 Sheets-Sheet 15 RKSM/TH WVENZZSJHSULZER ATTORA/EP R.- K. SMITH ETAL Sept 7, 1943.

' TEST DEVICE Filed April 29, 1942 66 sheets sheet l4 RKSM lNl/EN7ORS A 7' TORNEY Sept. 7, 1943;

R. K. SMITH ETAL TEST DEVICE Filed April 29, 1942 N IESIEUSIS 66 Sheets-Sheet l5 RKSM/ TH A T TORNEV Sept. 7, 1943. R.K'. SMITH ET AL TEST DEVICE Filed April 29 1942 66 Sheets-Sheet l6 7 ATTORNEY J. hf SULZER Sept. 7, 1943. R. K SMITH ETAL TEST DEVICE Filed April 29, 1942 w. HR a n m M 5w 5 s w w W T N w W 4km \T m u maw m a A T TORNE Y Sept; 7, 1943; R. K. SMITH ETAL 'wmsw DEVICE Filed April 29, 1942 66 Sheets-Sheet l8 R./(. SMITH 213%.. SULZER Sept. 7, 1943.

'R. K. SMITH ETAL TEST DEVICE Filed April 29, 1942 66 Shets-Shnet 19 EIII'IEHZTIILI LT; 1 111:: 1U.111E.DIEIUIIUI:11:

m 0596 m9 \EYEE '1I111U11Im:. .JIIEJIJIITIII 'JIUZI.

n m 1% kg I III-lulllluI-lllnllull-I- l-I-llullulll R. K. SM/

IN VE N TOR-S J .H.$ULZER ATTORNEY v Sept. 7, 1943. R. K. SMITH ETAL 2,323,750

TEST DEVICE Filed April 29, 1942 as Sheets-Sheet .20

JIIHI' v R. K. SMITH INVENTZ:SJ.H.SULZER v v v ATTORMSV 

